Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 18 3-WIRE VARIABLE-LENGTH SERIAL I/O (CSIF)
R01UH0042EJ0500 Rev.5.00 Page 773 of 1513
Aug 12, 2011
(3) CSIFn control register 2 (CFnCTL2)
CFnCTL2 is an 8-bit register that controls the number of CSIFn serial transfer bits.
This register can be read or written in 8-bit units.
Reset sets this register to 00H.
Caution The CFnCTL2 register can be rewritten only when the CFnCTL0.CFnPWR bit = 0 or when both the
CFnTXE and CFnRXE bits = 0.
After reset: 00H R/W Address: CF0CTL2 FFFFFD02H, CF1CTL2 FFFFFD12H,
CF2CTL2 FFFFFD22H, CF3CTL2 FFFFFD32H,
CF4CTL2 FFFFFD42H
0CFnCTL2
(n = 0 to 4)
0 0 0 CFnCL3 CFnCL2 CFnCL1 CFnCL0
8 bits
9 bits
10 bits
11 bits
12 bits
13 bits
14 bits
15 bits
16 bits
CFnCL3
0
0
0
0
0
0
0
0
1
CFnCL2
0
0
0
0
1
1
1
1
×
CFnCL1
0
0
1
1
0
0
1
1
×
CFnCL0
0
1
0
1
0
1
0
1
×
Serial register bit length
Remarks 1. If the number of transfer bits is other than 8 or 16, prepare and
use data stuffed from the LSB of the CFnTX and CFnRX
registers.
2. ×: don’t care